web quality; measurement; expert system; fuzzy; fuzzy approach; questionnaire; user testing; evaluation

Currently, there are a lot of web pages and web applications which are used for information administration, exchange and publication. However, the quality of the websites is very different. Nowadays there is the user testing approach for web quality measurement which increasing the level of the web quality. In this article, the fuzzy approach and expert system for complex web quality measurement is proposed. The proposed approach is based on evaluating results of user questionnaires and provides a complex evaluation of web application quality. The output of the expert system is the degree of web application quality.